I like to buy books and I would be interested in this...but I would be unlikely to buy a book about it, because I would be worried about spending money on it on

I like to buy books and I would be interested in this...but I would be unlikely to buy a book about it, because I would be worried about spending money on it only to find out that it's out of date or doesn't address my own situation. This seems like something better served via web.